1. Seleniferous vegetation of Wyoming;Beath;Wyoming Agric. Exp. Sta. Bull.,1937
2. Certain poisonous plants of Wyoming activated by selenium and their assocition with respect to soil types;Beath;Jour. Amer. Pharm. Assoc.,1934
3. Selenium and other toxic minerals in soils and vegetation;Beath;Wyoming Agric. Exp. Sta. Bull.,1935
4. Selenium distribution in and seasonal variation of type vegetation occurring on seleniferous soils;Beath;Jour. Amer. Pharm. Assoc.,1937
5. Selenium occurrence in certain soils in the United States, with a discussion of related topics;Byers;U. S. Dept. Agric. Tech. Bull.,1935